Spring bumper for automobiles



F. D. ROBINSON SPRING BUMPER FOR AUTOMOBILES Jan. 19 1926.

2 sheets-sheet 1 Filed Oct. 5, 1924 l mfmf'f j W/TNES 5 /77' RN: vs

F. D. ROBINSON- SPRING BUMPER FOR AUTOMOBILES Filed Oct. :5, 1924 2Sheets-Sheet 2 gw @MR BMV .fTToR Ys Patented Jan.119,"1926,7' y i* i ilFREDERICK D. ROBiNsoN, or 'RAL;'.WINSWLLE;4 NEW YORKASSIGNQ ,ro ENN';

SPRING WORKS'INCORPORATED, or DaDDwrNsvrLLE, NRW YORK, A CORPORA-`rrIoNOFNEWYORK. t

1 Isx1-RING BUMPER FOR vAuroraoiILn'is. n: i

' 1 VAppncatnm ined october 3, 1924. 'serial Na7/11,371;

To all whom t malycolaclcmf l I pactlbar.

fis

1 of the further'modified form of bracingele-x- Be -it knownthat I,FREDERICK: ROBIN- America, and aresidentv of Baldwinsville. in theAcounty ofOnondaga, in theStatefof New York, have invented new`and'useful Improvements in Spring Bumpersjaor Automobiles,l of which thefollowing,"taken. in connection, with the accompanying draw-f ings, is afull, clear, and exactdescription.

This invention relates tolspring 'bumpers for automobiles and analogoususes, ink which a resilient impact member is reinforced ,o'r' braced byaj resilient supporting` membery mainly at the krear of theimp'actmember, both members and -ftheirl connectionsgfone 'with theother-forming lthe .bumperi 'The mainY Objectis to'providethe`supporting or bracingy member with rearwardly and laterally curvedfloopsandA varmsf'rextending tangentiallyirom the rear'side of the loopstoltheimpac't member and 'secured thereto for stiffenin'gthe centralportion orv -the impact member whereit is subjected to the most lsevereimpact strainsybyscontact with objects in thepath -of-xthe moving Ama?chine. Other Vobjects of the several; modi-v fications will be broughtout lin thefollowt ing description. f' w l In thedrawingsz i Figures 1and 2 are respectively'a liront kface view and aflongitudinal sectionalview 4 receiving suitable' finishing bolts -,2- hav- Y n takenl on line2-25 Figure T1,r showing one form of bumper with 4a single impactobarper; ends for `ornamentation aswell` as st ifff ening, purposes, the.,'onlyl, difference beingv and spaced loops connected by4 tangentialvarms to the end of the bar j o y -5 I-f'- A Figures Sand Llarerespectivelyvk a front yface view,` anda longitudinal :sectional view,

taken onwlinem4-l4, YFigure 3 showinga modiiied bracingZ elementjtorthev single im- YFigures 5 andV are respectively a front face view and?a longitudinal sectional view5 taken l on line 6 6, -Figure V5;:@showing a further modified Yform of single-bar; `impact element andbrace element therezlor. r Figure'? is a longitudinal sectional,:view=`ment showing v. F the -tangentialf@` armsv of, Figure 2 in connectionwith` the double loop brace barfof Figure 6.

` Figures-8 and 9are respectivelyarfifongj face view andy,a-florigitudinal sectional;,vievvVv taken onY line 9-p-f9, Figureshowing a,k

be ktelfled thearear members;AV 2

The bumpers shown 'in VFigures doublebar impact-element and bracingmm- Y-bers similar -to-thoseshow'n in Figure 2. soN, a citizen lof the'United' States* oi' i face vi'ewnanda longitudinal' Ysectional View vtaken-on line llll Figure Y,10;shovvingi:if ,furthenmodied lformV ofdouble bary impact Amember andl bracemembers similar to .Figures lOandl1 are respectivelya front those r 'shown in Figures 3y and 4. l;

`; Figure-14 is'an enlargedftransverse verti'c'al sectional;v view takeni on l line'.- lll-1,4V F1gur'e'l0.V pTheft'ermfront as used in.theqd'escription 'oi these vbumpers applies specically to those" whichare vused on the front vofthe machine-but it; is evident thatlthesamelbumpersmay v.be used4 on the rear of thefma'chine in which casethoseV members fwhich; are described; as the front members',-Or-.ifacingqthe1*front of. the machine would l t y v1 to.frinclusiv'e involve the use oiV a ,slnglefbar 1msta-nti ally lidentical:construction in that each is' made-of resilient or spring metalfand isprovided with a substantiallyy straight cenf ing ornamental capsv onboth vlo'werand up-v that'theeyes ,.--1f--vinfFigu'res5Y and 6 are Y,

orwardlyfand that the twofbolt holes-for clamping saidl parts of theVbra,ce{.elern'vents to ythe impact elementi are'omittedin Figures .I t-1 and'2. f V' "L .fl l QThe ybracing"element shown in Figures 1fand2c'oinpr1s`es` a bariofclosed loops arranged at the-*rear of theimpactv element in longitudinally spaced` relation iand having theirVfront sides-securedby bolts *jfl-to thevinner or rear sides 4of theloops-3fbeing connected tothe outer ends -Or eyes 15-1-offtheimpactmemberfelby. ad-

di tional brace Y f membe'rs extending laterally tangentially from ,theinner sides.l

the Vrear'lfafces, of; thefimpact elementy 1 of the loops -3- andpreferably form integraliparts' thereof, the other ends-of the theloopsiand alsobetween'the cur-vedends f-'l-"-' and'arms of the bracingelements. VIln'Fi'gures 4 and '5 the bracing elem'entfcomprises-'a pairof closed loops '--7- andarms '-8-`- and-94 extending laterally andtangentially 'from the inner sides of the loops which Aare'arranged inlongitudinally spacedrelati'on at opposite sides of thecenter"and at the-rear of the impact element -1- and are `secured by bolts '-4- to therear face of said impact member.l 'The loops -7- :are 'preferbly formedintegra'l with-'the varms --'8'- wlii'ch,"in1turn,

are-integrally united to .each other andare securedf-by'a bolt #-10- tothe central portion of the impact bar --l'.

The'bracemembers' -.-9- are simi-lar to the brace membersl shown inFigures l and 2 except that they are made' separate from 'the respectiveloops but are secured to the inner or rear faces thereof by b'olts ylnFigurev '6 the 'bracing element comprises a pair of openVloops"-112--:arranged at the rear of theinipa'ct bar 1-'inlongitudin'ally spaced relation at opposite sides ofthe centerof saidimpact bar and having thefroit sides 'secured by bolts tev therea'rfaceof the impact member.

Apair of bars -`vl-l3''extendinwardly from ythe rear sides ofvthfe loopsi-V-lQe-.tangen'tia'lly thereto` and preferably Vintegral therewithandare united' to each other'and secured te the' centralpci-tion4of'the'impact bar -l-- by a bolt -10-. I

ln Figure 17: isshown a Ibracing member similarfto'that shown inliguref` fandf additional bracing "nieifnbers '9-1 similar 'to@thoseshownFlgiu-esi3 and 4, the' central bracl-ng 'member conslstlngof"the loops '-12-"3 andtaligential` larms V13-V secured respectively t'o5the rear face of the impact 4manner similarftorthatshownv in `vFigure 6while'the inner yencls'iof the brace members -9- are secured to the rearsides of the loops -12- by bolts In Figures 8 to 13 inclusive the impactelement is composed of two parallel and vertical'ly spaced barsn1'5.-'similar to "the bar 1 -in that theirepposite endsl are curvedrearwardly at -1'5"- and terminate in eyes 16- for receiving thefinishing bolts as -2- the central portions between the curved endsbeing substantially straight and disposed in the same vertical plane.

These bars -l'5; are held inspaced relation'bysimilar clamping devicesTeach consisting' of a front plate fland a rear plate v18- locatedrespectively ma-inlyat the front and at the rear ofthestraightportions'of thebarsythe front' plates being recessed toreceive saidvbars'andlar'e providedv at both their lower and Y"upper edges withrearwardly .and downwardly turning `flanges l9 for engaging :the inneror rear faces of the bars; i

The inner plates M18-J l"are placed between the flanges -19- of V.thefrespective plates '17- and `are provided' withv forwardly projecting lugs-20-iengagingin apertures `21 inthe bars -l5-t o assist in holdingsaidbars in spaced relation` and also against relative endwisemovemenh'theplates of each clamping! device being drawn -tightly against oppositefaces of the bars 415-# and heldin l"fixed relation to each otherbyclamping bolts 122; see Fig- 'addition-'al clamp substantially midwaybetween the previously describedclamps and consisting of `rfront rearplates and -'24- and a clamping bolt V+25- which-serves to additionallyhold fthe bars -15- in vertically spaced 'relation Iand also to clampsaid bars toffthe lcentral portions ofthe bracing elements usedt inconnection ytherewith theffigures mentioned;

The bracing Velements .shown V"in Figures 8 and 9 aresimilar to thoseshown Yin .Figures laiidQvwhil'e those shown in' Figures l0 and'l laresimilar to those shown in Figure 4 and the ones shownin- Figures 12andf13 correspond to' those Hshown yinFig;

ures 6 and 7 and therefore theV same reference lletters appliedfto thebracing elementsinfFiguresfl -`to `7 inclusive, are' also Y applied ltothe bracing elements :shownin Figures 8tol3 inclusive.'` i* It will benoted, however, that the portions of the bracing elements :shownin'Figures i8 `to il?) inclusive, adjacent to Vthe \iII`1 the impactmember.

pact element are positioned between the impact bars -15-. and thereforeassistk in holding saidbars -15 in spaced relation, the outer portionsof the loops -`-3-, #-7- by the clamping members -23- and #2.4.-

and bolt -25 the ends of the arms 5" and -9- being clamped between theouter ends of the bars -15- by the bolts -2-" thereby establishing Vfirmconnections` between the impact 'element and bracing ele;v ment. v

l-It Vwill be noted that in all thesevarious modifications the'impactelement,lwhether one bar or two` bars,is supported by theA bracingelement and that both elements are made of resilient or spring metaljthereby establishing` a Vresilient lconnection betweeny the impactelement and the bracing element through the medium of the" loops -'-3-,'7- or l2-and also throughthe me.

dium of the arms -5- and -9-, and y 4l-- and #1B-- all contributing`tothe carrying out of the one object of strengthening'the impactelement and at the same time providing additional resiliency thereto tocom-V pensate for varying pressures which may be brought to bear againstthe bumper as a whole by impact with objects which may.

be in the path of the machine and also reducing the liability offriction of the variousvv 2. An automobile bumperv as in claim whichmeans 1s provided for connecting, oney end of'each loop to theimpactmember in` combination with brace-members connecting the other ends ofthe loops with the central. portion of the impact'member.`

3. An automobile `bumperv asjinclaim 1il in [which clamping devicessecure gcorref sponding ends oftheloops to the impact member, and bracemembers havingl their inner ends secured to the other ends of the-v.rovided `with f loops and their outer ends eyes registering wlth theadjacent .eyes of 4. A n automobile e which separate'- devices L areprovided for clamping corresponding ends Vofthe loopsto the impactmember aty oppositesides of the center thereof Vin combination y withbrace,

bumper as in claim'l in members ysecured to the other ends of the lloopsand to the central portion of the im- Y pact member, and additionalbrace members secured to said other ends of the loops and extendedoutwardly therefrom and having their` outer ends provided with eyesregistering Vwith the adjacent. eyes` of member. l

the impact` l5. An automobile bumper comprising-iai"- resilient impactmember having bolt-eyes at both ends, andsupporting means for theimpactmember including separate pairs of re versely arranged loops atoppositel sides `of.

,the ,center of the impact member, and dey the loopsto the impact bar.

vices for` clamping corresponding ends" of 6. An automobile bumper`comprising'a resilient impact'member having bolt-eyes at both ends,andsupporting means forr the im VVpact member including rseparate pairsof relvers'ely' arranged loopsat opposite 'sides of the* center oftheimpact member, kand devices for clamping correspondingends of' theloops' to the impact bar, and brace members secured to the f other endsofy the' loops and tofthe central' portionv of the impact member. 'Y z Yj `7.'Anv automobile bumper comprising a resilient impact member havingbolt-'eyes at' 'both ends, and supportingmeans forthe impact memberincluding separate pairs of re-V versely arranged loops at oppositesidesof thefcenter of-the impact member, iand de vices for clampingcorresponding ends of the loops to the impactbar, and bracev'mem# 'bersvsecured to the other ends of the loops and to the :central portion ofthe impact member, andbrace members secured to the i vother ends of saidloops and'extended outwardly therefrom andA havingv their outer endsprovided with eyes registeringV with the v.adjacent eyes of the impactmember.'- V

f 8. An automobile bumper comprising ai resilient impact member rhavingbolt-eyes* at both ends, and ysupporting means for the impact memberincluding.` separate pairs of reversely arranged loops at opposite sidesof the center of the impact member,.and devices for-clamping.ycorresponding endsof the loops tothe impact bar, and bracememberssecured to the other ends ofthe loops and. to theV centralportion of the impactV member, and brace 'members secured to theyotherrends of said loops and extended yforwardly. and outwardlytherefrom, the outer endsof the outwardly extendingbrace membersbeing`rovided with eyes registering with'v the Yadjacent eyes' ofjthe impactmem v berv anddevices forclamping the inwardlyVV extending brace members'to thecentral por-k tion of ktheimpact member.

In ywitness'whereof Ij have hereunto set' my'hand thisf26thdayofSeptember,` 1924.

FREDERICKD. lno iiiison.

